# TestSTMemory vs Schulte Grids

The clearest difference is price: Schulte Grids at Free against TestSTMemory's $2.99. Schulte Grids also leads on update cadence (weekly vs every 13 months) and device support (3 vs 1). TestSTMemory's advantage is ads (none vs shown). On in-app purchases and iOS requirement there is nothing between them.

Schulte Grids is free to download; TestSTMemory costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TestSTMemory ships an update every 13 months, Schulte Grids weekly. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | TestSTMemory | Schulte Grids |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Weekly** |
| Size | 2 MB | 27 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Viacheslav Romanenko](https://appshunter.io/developer/1046372418) | [豪 陈](https://appshunter.io/developer/1852919038) |

## What reviewers say

### TestSTMemory

[App page](https://appshunter.io/ios/app/teststmemory/id1358135078)

**Features:** Vision Pro support

**In-app purchases:** none


### Schulte Grids

[App page](https://appshunter.io/ios/app/schulte-grids/id6761087578)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TestSTMemory free?

TestSTMemory costs $2.99, with no in-app purchases.

### Is Schulte Grids free?

Schulte Grids is free to download, with no in-app purchases.

### Do TestSTMemory or Schulte Grids have ads?

Schulte Grids shows ads; TestSTMemory does not.

### Which is updated more often, TestSTMemory or Schulte Grids?

TestSTMemory ships an update every 13 months, and Schulte Grids weekly. Most recently, TestSTMemory was updated on September 19, 2026 and Schulte Grids on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*